So ive had Cha Ching on back order from my local hydro store for two months now, i finally got it today yah. Anyways one of the four of my flowering mothers just finished yesturday. But the other three have a few weeks yet i think. Its day 70, and one of them hasn't even started showing red hairs yet. My question is it too late into flower to start using cha Ching? Thanks for any replys.